Home / 7,223.92-10,842.40-4,878.16

Finding the Fourth Proportional to 7,223.92, 10,842.40 and 4,878.16

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Solution

The fourth proportional to 7,223.92, 10,842.40 and 4,878.16 is: 7,321.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223.92 : 10,842.40 = 4,878.16 : x
  2. Step 2: Convert to fraction form
    7,223.92/10,842.40 = 4,878.16/x
  3. Step 3: Cross multiply
    7,223.92x = 10,842.40 × 4,878.16
  4. Step 4: Simplify right side
    7,223.92x = 52,890,961.98
  5. Step 5: Solve for x
    x = 52,890,961.98/7,223.92
  6. Step 6: Final answer
    x = 7,321.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.